New York City rent stabilization law in 2026 — the complete landlord guide NYC Admin. Code §§26-501 through 26-530: RGB Order #57 (2.75%/5.25% for leases commencing October 1, 2025–September 30, 2026), HSTPA 2019’s five landmark changes, the preferential rent freeze, IAI/MCI caps with 30-year sunsets, RTP-8 renewal mechanics, DHCR Form RR-1 July 31 registration deadline, just-cause eviction on 8 enumerated grounds, overcharge penalties with 6-year lookback and treble damages, 421-a expiration and 485-x, and a borough-by-borough coverage map of Manhattan, Bronx, Brooklyn, Queens, and Staten Island.

Legislative history — from 1943 wartime freeze to HSTPA 2019

New York City has operated continuous rent regulation in some form since the early 1940s — a history more than twice as long as California’s AB 1482, more than three times as long as Oregon’s SB 611, and longer than any other active U.S. rent-control framework. Understanding that history is not merely academic: the current legal regulated rent of a stabilized apartment frequently traces through registrations from the 1970s, 1980s, and 1990s, and overcharge claims under the HSTPA fraud lookback can examine rent histories going back to 1984. The law’s architecture reflects the accretion of eight decades of legislative response to New York’s chronic housing shortage.

1943–1947: Federal wartime rent control. The Office of Price Administration (OPA), created by the Emergency Price Control Act of 1942, imposed nationwide rent controls on residential housing in March 1943. In New York City, this froze rents at their March 1, 1943 levels for the duration of the war and a transition period afterward. The federal controls were administered locally and provided the first systematic definition of “maximum rent” for New York City landlords. The OPA era established administrative infrastructure — registration of rental units, formal maximum rent certificates, complaint mechanisms — that became the template for all subsequent New York rent regulation.

1947–1969: The Emergency Housing Rent Control Law. When federal controls were scheduled to expire after the war, New York State enacted the Emergency Housing Rent Control Law of 1947 (EHRCL) to maintain regulation on pre-war housing. The EHRCL covered apartments in buildings constructed before 1947 with three or more units. These apartments — the classic New York pre-war walk-ups and elevator buildings of the 1920s and 1930s — became what is now called the “rent control” class (as distinguished from “rent stabilization”). Rent control under EHRCL allowed very limited increases and remained at substantially frozen rent levels for decades. As of 2026, only about 22,000 apartments remain in the rent control class, all occupied by long-term tenants who have held their leases continuously since the era of rent control jurisdiction — this class is shrinking as tenants vacate and units convert to stabilization or the market.

1969: The New York City Rent Stabilization Law. By the late 1960s, New York City faced a severe shortage of rental housing outside the rent-controlled stock. Buildings constructed after 1947 operated without regulation and were experiencing rapid rent increases. The 1969 NYC Rent Stabilization Law (RSL), codified at NYC Admin. Code §§26-501 et seq., established a new tier of regulation for the “middle” housing stock: apartments in buildings constructed between 1947 and 1969 with six or more units. Regulation was administered not directly by a government agency but through the Real Estate Industry Stabilization Association (REISA), a private landlord-controlled body operating under a public mandate — a structure that would later be criticized as industry capture. The 1969 RSL created the first Rent Guidelines Board (RGB), composed of nine members appointed by the mayor (two representing tenants, two representing landlords, five “public” members), which set annual maximum rent increases. The RGB structure — annual voting in June, rates applied to leases commencing the following October 1 — has remained unchanged from 1969 to today.

1974: The Emergency Tenant Protection Act (ETPA). The ETPA extended stabilization in two directions simultaneously. First, it applied stabilization to New York City buildings that would not otherwise have been covered: buildings receiving tax-benefit programs (421-a, J-51, Mitchell-Lama) were brought under stabilization as a condition of receiving those public benefits. This created the second major class of stabilized housing — the “program” buildings — whose stabilization is conditional on the benefit period. Second, the ETPA authorized localities in Nassau, Westchester, and Rockland counties to adopt local stabilization ordinances under DHCR administration, extending the New York framework beyond the five boroughs. Administration shifted from the private REISA to a government agency, the New York State Division of Housing and Community Renewal (DHCR), which has administered both rent control and stabilization ever since.

1985 and 1993–1997: The deregulation era begins. The Omnibus Housing Act of 1985 consolidated major amendments and introduced the first mechanisms that would allow units to leave stabilization: the precursors to what became High-Rent Vacancy Decontrol. The Rent Regulation Reform Acts of 1993 and 1997 formalized luxury deregulation at scale. The 1993 Act created High-Rent Vacancy Decontrol: any stabilized unit where the rent exceeded $2,000 per month and the unit became vacant could be deregulated. The 1997 Act lowered the vacancy threshold and also created High-Income Decontrol (a unit could be deregulated if the tenant’s household income exceeded $175,000 for two consecutive years and the rent exceeded the applicable threshold). Between 1994 and 2019, approximately 300,000 apartments were removed from New York City stabilization through these mechanisms — a substantial reduction in the regulated stock at a time when the city’s market rents were rising rapidly.

2011: Rent Act of 2011. The 2011 Act raised the deregulation rent threshold from $2,000 to $2,500 for High-Rent Vacancy Decontrol and tightened some IAI abuse provisions (though without hard-capping IAI increases). It also raised the high-income threshold to $200,000 annually. The changes slowed but did not stop the deregulation trend: apartment rents in strong Manhattan submarkets regularly exceeded $2,500 on vacancy, and the deregulation pipeline continued.

2019: Housing Stability and Tenant Protection Act (HSTPA) — the watershed moment. The HSTPA was signed by Governor Cuomo on June 14, 2019. It was the culmination of a years-long campaign by tenant advocates and coincided with Democratic control of both chambers of the New York State Legislature for the first time since 2009. The Act reversed essentially all of the 1993–1997 deregulation policy in a single legislative session. The five structural changes are covered in depth in the HSTPA section below, but the headline impact was immediate: every remaining mechanism for removing a unit from stabilization was eliminated; the vacancy bonus that landlords had used to raise rents 20% at every tenant turnover was abolished; and the preferential rent — which landlords had strategically used below the LRR while knowing the LRR gap would be recoverable on vacancy — was permanently frozen as the base for all future increases.

2022–2024: 421-a expiration and 485-x. The 421-a tax exemption program, the primary mechanism for bringing new construction into stabilization, expired for new project applications on June 15, 2022. After nearly two years of failed negotiations over a replacement, the New York State Legislature enacted 485-x in the April 2024 budget agreement. The 485-x program is significantly different from 421-a: it requires a higher percentage of affordable units (25% at deeper income targeting), imposes prevailing wage requirements, and subjects covered units to good-cause eviction rules under Real Property Tax Law §487 — a separate regulatory regime that is emphatically not the same as RSL stabilization. 485-x units do not receive RGB Order renewal rates and do not require DHCR registration under the RSL framework. The distinction matters enormously for landlords building or purchasing buildings under either program.

Coverage rules — which apartments are rent-stabilized in 2026

The threshold compliance question for any NYC rental property owner is whether a given apartment is legally stabilized. Stabilization status is not always self-evident from the age or appearance of a building: a 1960s-era building may or may not be stabilized depending on unit count and benefit history; a post-1974 building with J-51 renovation benefits may be stabilized during the benefit period and shift status on expiration; a building that was stabilized until 2018 but where a prior landlord attempted deregulation must be carefully analyzed for whether the deregulation was lawful pre-HSTPA.

Category 1: Original RSL and ETPA class (the primary stabilization stock)

The core stabilized class consists of residential apartments in buildings that meet all of the following: (a) the building contains six or more residential units; (b) the building is located in one of New York City’s five boroughs; (c) the building’s construction was completed before January 1, 1974; (d) the building has not received a tax-benefit program (421-a, J-51, etc.) that would place it in Category 2. These apartments are stabilized indefinitely under post-HSTPA law. The 1974 cutoff for the original RSL class (as amended through ETPA) means that construction date — not first certificate of occupancy date, not renovation date, not current owner’s purchase date — determines whether the building is in the original class.

Note the structural difference from DC rent control (pre-1975 first CoC) and California AB 1482 (rolling 15-year exemption for new construction): NYC uses a fixed 1974 building-construction cutoff for the original class, but the post-1974 world is substantially populated by Category 2 tax-benefit buildings where stabilization depends on benefit-program status rather than construction date alone.

Category 2: Tax-benefit program buildings

Buildings that received municipal tax-exemption or tax-abatement programs were stabilized as a condition of receiving that public benefit. The major programs:

• 421-a: The dominant program for new residential construction from the 1970s through 2022. Buildings receiving 421-a abatements (which significantly reduced property tax for up to 35 years) had their units registered as stabilized during the benefit period. When the benefit expires, the stabilization status of the unit depends on when the expiration occurs and whether HSTPA’s prohibition on deregulation applies. For buildings whose 421-a benefit expired before June 14, 2019 (HSTPA’s effective date) and where deregulation was properly executed under then-applicable law (rent over threshold, vacancy occurred), those units may be legitimately out of stabilization. For buildings whose benefit expires after June 14, 2019, HSTPA’s elimination of deregulation pathways means the units remain stabilized on expiration.
• 421-g: A Downtown Manhattan residential-conversion program for commercial-to-residential conversions, primarily applicable to lower Manhattan buildings converted in the 1990s and early 2000s. Stabilization attaches during the benefit period.
• J-51: A tax-exemption program for qualifying rehabilitation and renovation. Buildings receiving J-51 benefits are stabilized during the benefit period. The J-51 universe is particularly complex because many J-51 buildings contained units that were simultaneously deregulated under High-Rent Vacancy Decontrol before HSTPA — a practice the Court of Appeals ruled unlawful in Roberts v. Tishman Speyer Properties (2009), triggering major litigation and restoration of previously deregulated units to stabilization in certain buildings.
• Mitchell-Lama: A state program for middle-income cooperative and rental housing. Mitchell-Lama rentals have separate regulation under HCR, but upon dissolution of the Mitchell-Lama status (buyout), formerly Mitchell-Lama rentals often transition to RSL stabilization for units that qualify by construction date and other criteria.

Verification

The definitive verification method is the DHCR rent history search at nyshcr.org/Apps/HousingConnect, which shows every annual registration filed for a given unit since registration began. A continuous registration history confirms stabilization. Gaps, jumps, or missing years signal potential issues. The NYC Rent Stabilization Association (RSA) and Community Housing Improvement Program (CHIP) also maintain building-level databases that can assist landlords. For newly acquired buildings, counsel experienced in DHCR practice should review the rent history for every unit before the purchase closes, because overcharge liability transfers with ownership in many circumstances.

RGB Order #57 — the 2025–2026 renewal cycle

The Rent Guidelines Board (RGB) votes annually each June to set the maximum permissible rent increase for renewal leases commencing in the twelve-month period beginning the following October 1. The nine-member board — two tenant representatives, two landlord representatives, and five public members, all appointed by the Mayor of New York City — conducts months of public hearings and economic analysis before voting. The process is highly public and politically contested: RGB hearings are standing-room-only events where hundreds of tenants and landlords testify, and the annual vote is one of the most watched housing policy decisions in the United States.

Order #57 rates: voted June 2025, applicable to leases commencing October 1, 2025 through September 30, 2026:

• One-year renewal leases: 2.75%
• Two-year renewal leases: 5.25% (structured as 2.75% applied at the start of year one, with an additional increment applied at the start of year two such that the total increase over the two-year term equals approximately 5.25%; the exact second-year additional percentage is set by the RGB vote)

Historical comparison: RGB Order #56 (2024-2025 cycle) set rates at 2.75% (1-year) and 5.0% (2-year). Order #55 (2023-2024) set 3.0% for one-year and a split structure for two-year leases. Orders #51 and #52 (2020 and 2021) were both 0% and 0% for both lease types — the only time in RGB history that rates were set at zero, reflecting COVID-19’s economic impact. Order #53 (2022-2023) rebounded to 3.25% / 5.0%, and Order #54 (2023-2024) was 3.0% / split. The 2.75% rate in Orders #56 and #57 reflects a period of moderating inflation compared to the post-COVID spike.

Dollar impact at representative rent levels:

Current monthly rent	1-year renewal (+2.75%)	Monthly increase	2-year renewal (+5.25%)	Monthly increase
$1,200	$1,233	+$33	$1,263	+$63
$1,500	$1,541.25	+$41.25	$1,578.75	+$78.75
$2,000	$2,055	+$55	$2,105	+$105
$2,500	$2,568.75	+$68.75	$2,631.25	+$131.25
$3,000	$3,082.50	+$82.50	$3,157.50	+$157.50
$3,500	$3,596.25	+$96.25	$3,683.75	+$183.75

No banking: Unlike California AB 1482 (which permits landlords to accumulate unused increases up to the annual cap across years) and DC’s Rental Housing Act §42-3502.08(g) (which explicitly allows banking of unused RY increases), NYC stabilization categorically prohibits banking under 9 NYCRR §§2522.5 and 2523.5. A landlord who chose not to raise rent under Order #56 (2024-2025) cannot add that unused 2.75% to Order #57’s 2.75% for a combined 5.5% increase. Each renewal is calculated fresh: the applicable RGB rate for the order in effect when the new lease commences, applied to the rent that was actually collected in the prior month, is the only lawful increase available. Any amount above that figure is an overcharge.

Which order applies? The governing order is determined by the lease commencement date, not the date the lease is signed or the date the RTP-8 is served. A renewal lease signed in August 2025 but commencing October 15, 2025 is governed by Order #57 (leases commencing on or after October 1, 2025). A renewal lease signed in September 2025 but commencing September 1, 2025 (a back-to-school cycle building) is governed by Order #56. Landlords managing buildings with diverse lease-start dates may be operating under two different RGB orders simultaneously in any given calendar month.

HSTPA 2019 — the five landmark changes in depth

The Housing Stability and Tenant Protection Act of 2019 (chapter 36 of the Laws of 2019) fundamentally altered every major structural feature of NYC rent stabilization in a way that no prior amendment had done since the original 1969 law. Its five core changes eliminated the primary pathways through which stabilized apartments had been leaving regulation since 1993 and restructured the economics of every landlord-tenant relationship in the stabilized stock. Each change merits detailed analysis because the post-HSTPA rules differ so dramatically from the pre-2019 regime that a landlord who learned the law under the old framework must essentially relearn it.

Change 1: Abolition of the vacancy bonus

Before June 14, 2019, when a stabilized tenant vacated an apartment, the landlord was entitled to add a “vacancy allowance” of up to 20% above the prior legal regulated rent before re-renting to a new tenant (9 NYCRR §2522.8, since repealed by HSTPA). This vacancy bonus was the most powerful mechanism for escalating stabilized rents: a $2,000/month apartment becoming vacant could be re-rented at $2,400/month to a new tenant, and that new higher base then compounded forward through all subsequent RGB increases. In high-demand neighborhoods where tenant turnover was frequent — Manhattan’s student and young-professional submarkets, Williamsburg, Astoria — the vacancy bonus was the economic engine driving stabilized rents upward toward the deregulation threshold. After HSTPA, the vacancy bonus is zero. When a stabilized tenant vacates in 2026, the new tenant’s initial rent is calculated from the prior tenant’s last lawful rent (the legal regulated rent, or the preferential rent if one was in effect — see below) plus only the applicable RGB renewal rate. No additional vacancy increment of any kind is permissible.

Change 2: Preferential rent frozen as permanent base

This is the change with the largest financial impact on existing landlords who had strategically deployed preferential rents. Before HSTPA, if a landlord charged a “preferential rent” — any amount below the legal regulated rent — and registered both figures with DHCR, the landlord retained the right to recover the full legal regulated rent (LRR) at the next vacancy or, in some circumstances, at renewal. The LRR was tracked separately as the “regulated rent” in DHCR registrations, and the collected amount was separately noted as the “preferential rent.” The gap between the two could be substantial: a landlord might charge $1,800/month preferential while the LRR was $3,200/month, knowing that upon vacancy the LRR would be recoverable. Post-HSTPA 2019, NYC Admin. Code §26-511(c)(14) and 9 NYCRR §2521.2 provide that the preferential rent in effect at the time of HSTPA’s enactment (or at any time a preferential rent is established thereafter) is the permanent base for all future lawful rent increases — including on vacancy. The landlord cannot charge the LRR; the new tenant’s initial rent must be calculated from the prior preferential collected rent plus only the applicable RGB rate. The LRR continues to be registered with DHCR as a reference, but it has no practical economic significance for landlords who have been collecting below it.

Change 3: IAI cap and 30-year sunset

Before HSTPA, Individual Apartment Improvements generated permanent rent increases under the formula 1/40th of renovation cost per month for buildings with 35 or fewer units (1/60th for larger buildings). There was no dollar cap per improvement. A $40,000 kitchen renovation in a 35-unit building generated $1,000/month in additional permanent stabilized rent (40,000 ÷ 40 = $1,000). Because this formula was permanent and compounding, and because kitchen/bath renovations in high-demand neighborhoods could be documented at whatever cost was negotiated with contractors, IAI was systematically abused throughout the 2000s and 2010s: inflated contractor invoices, renovations to vacant units “in preparation for new tenants,” and sometimes outright fraudulent documentation were used to manufacture rent increases that pushed LRRs above the deregulation threshold. Post-HSTPA, IAI increases are capped at $89 per room per month (1–14 rooms) or $115 per room per month (15+ rooms) and carry a 30-year sunset after which the surcharge is eliminated from the rent calculation. The $89/room formula means even an apartment with every room qualifying and the maximum allowable improvement generates only 4 × $89 = $356/month in IAI surcharge, which expires in 30 years. This effectively makes large-scale renovation as a rent-escalation strategy economically unviable for stabilized units.

Change 4: MCI converted to temporary

Major Capital Improvement surcharges — covering building-wide capital expenditures like roof replacement, boiler/burner replacement, elevator modernization, and window replacement — were previously permanent additions to the stabilized base rent. Post-HSTPA, MCI increases carry a 30-year sunset that mirrors the IAI sunset: the surcharge is removed from the rent 30 years after the DHCR approval date. This changes the economics of major building capital investments: landlords can no longer treat MCI surcharges as permanent rent floor increases when underwriting building acquisitions or capital improvement plans. The MCI surcharge is now properly modeled as a time-limited amortization of the capital cost, after which rents revert to the base without the surcharge component.

Change 5: Elimination of all deregulation pathways

High-Rent Vacancy Decontrol (HRVD) and High-Income Decontrol (HID) are both abolished effective June 14, 2019. No stabilized apartment may be deregulated going forward under any mechanism available under current law. An apartment that was stabilized on June 13, 2019 remains stabilized indefinitely under post-HSTPA law, regardless of what rent is charged, who moves in, or what the tenant’s income is. This is a categorical, permanent change: there is no longer any threshold that triggers deregulation, no income-testing mechanism, and no vacancy-related deregulation event. The pool of stabilized apartments is now effectively fixed and can only decline (as buildings are demolished) or increase (if 485-x program apartments are eventually brought in under RPTL §487 good-cause rules, though that is a separate framework). Landlords who acquired stabilized buildings pre-2019 under the assumption that HRVD would allow deregulation of units as market rents rose must revise their underwriting assumptions entirely: the long-term stabilized rent track under annual RGB increases is the only available income path.

The preferential rent trap — what it means for every NYC landlord in 2026

The preferential rent freeze is the single most financially impactful HSTPA change for the largest number of NYC landlords, yet it is among the least understood. Surveys of NYC stabilized landlords post-2019 suggest that a significant fraction — estimates range from 20% to 40% of stabilized units — had preferential rents in effect when HSTPA was signed. Many of these landlords did not initially understand that the gap between their collected rent and the LRR had been permanently locked closed.

How to identify a preferential rent situation: Pull the DHCR rent history for the unit from RREIS. If the registration shows two figures — a “legal regulated rent” (sometimes labeled “maximum legal rent” or “LRR”) and a lower “actual rent charged” — a preferential rent is in effect. The gap between the two is the amount permanently written off by HSTPA.

The math of permanent compounding: Consider a unit whose LRR on June 14, 2019 was $3,000/month and whose preferential collected rent was $1,800/month. The gap is $1,200/month. At 2.75% per year (approximately the current RGB rate), the $1,800 base grows as follows:

Year	Preferential base (compounding at ~2.75%/yr)	Approximate LRR (assuming 2.75%/yr also)	Gap remaining
2019	$1,800	$3,000	$1,200
2024	$2,060	$3,432	$1,372
2029	$2,358	$3,929	$1,571
2034	$2,699	$4,499	$1,800
2044	$3,541	$5,901	$2,360

Because the LRR and the preferential base compound at the same rate, the dollar gap between them grows over time even though the percentage gap stays constant. The landlord is permanently capped below the market-clearing rate of the unit, and the cap tightens in real terms relative to what a deregulated equivalent unit would rent for. This is the core reason HSTPA’s preferential rent freeze was so significant: it permanently restructures the cash flow of any stabilized unit where a preferential rent was in effect, with no remedy available to the landlord short of a Council vote overturning the statute.

Vacancy and the new-tenant calculation: When a tenant with a preferential rent vacates in 2026, the landlord must calculate the new tenant’s initial rent from the prior tenant’s last collected preferential rent, applying only the applicable RGB renewal rate. If the prior tenant paid $1,800/month and the new tenancy commences October 1, 2025 (governed by Order #57), the new tenant’s initial stabilized rent is $1,800 × 1.0275 = $1,849.50/month for a one-year lease, or $1,800 × 1.0525 = $1,894.50/month for a two-year lease. The LRR of $3,000+ (compounded since 2019) does not enter the calculation at all.

IAI and MCI mechanics — the post-HSTPA calculation regime

Even under the post-HSTPA cap structure, Individual Apartment Improvements and Major Capital Improvements remain relevant tools for recovering capital invested in genuine building improvements — they are simply more limited in scope and now time-bound. Understanding the calculation mechanics is essential for landlords making renovation decisions for stabilized buildings.

Individual Apartment Improvement (IAI)

An IAI is a permanent, fixed improvement to a specific apartment that adds value beyond ordinary maintenance or repair. Qualifying IAI work includes: new kitchen cabinets and countertops (replacement of existing cabinets with new ones of better quality); new appliances (refrigerator, dishwasher, range/oven — replacements, not repairs); bathroom renovation (new fixtures, tiling, shower replacement); flooring replacement with higher-quality material; window replacement within the unit (if building-wide window replacement occurs, it becomes an MCI); and installation of new HVAC systems within the unit. Maintenance, repairs, and cosmetic repainting do not qualify as IAI.

The post-HSTPA cap formula:

• Apartments with 1–14 rooms: maximum IAI surcharge = number of qualifying rooms × $89/month
• Apartments with 15 or more rooms: maximum IAI surcharge = number of qualifying rooms × $115/month
• 30-year sunset: the entire IAI surcharge is eliminated 30 years after DHCR approves and the increase takes effect

Room count for IAI: DHCR counts each separately enclosed living space. Bedrooms, living rooms, dining rooms, dens, and kitchens count as rooms. Bathrooms, closets, corridors, and foyers do not. A classic NYC 3-room apartment (one bedroom, one living room, kitchen) generates a maximum IAI of 3 × $89 = $267/month. A four-room apartment (two bedrooms, living room, kitchen) = 4 × $89 = $356/month. A five-room apartment (three bedrooms, living room, kitchen) = 5 × $89 = $445/month.

Procedure: the landlord must obtain DHCR approval before implementing the IAI increase by filing Form RA-79 (Individual Apartment Improvement Application) with documentation of the work performed, contractor invoices or receipts, and photographs of the before and after condition. DHCR reviews the application and issues an approval if the work qualifies. The rent increase takes effect on the first rent due date after DHCR approval. The approval and the 30-year sunset date must be disclosed to the tenant in writing.

Major Capital Improvement (MCI)

An MCI is a building-wide improvement to a major building system that benefits all or substantially all tenants. Qualifying MCI categories: roof replacement; boiler/burner replacement; elevator modernization; pointing, waterproofing, and facade restoration; window replacement (building-wide); new heating, ventilation, and air conditioning systems; and electrical panel or service upgrades. Individual apartment improvements do not qualify as MCIs even if performed building-wide.

MCI surcharge calculation: (Total allowable MCI cost) ÷ (Number of rooms in all stabilized units in the building) ÷ 84 months = monthly surcharge per room per stabilized unit. Each unit’s surcharge = (per-room monthly amount) × (number of rooms in that unit). The 84-month amortization period (7 years) was set by DHCR regulation. The 30-year sunset clock runs from the date DHCR issues the MCI order.

Example: a 40-unit building with 160 total rooms in stabilized units undergoes a $400,000 roof replacement. MCI surcharge per room per month: $400,000 ÷ 160 ÷ 84 = $29.76/room/month. A 3-room unit receives a $89.29/month MCI surcharge. A 4-room unit receives $119.05/month. A 5-room unit receives $148.81/month. These surcharges are added to the stabilized rent for 30 years from the DHCR approval date, after which they are eliminated and the rent reverts to the base without the MCI component.

Tenant hardship challenge: any stabilized tenant in the building may file a hardship challenge to an approved MCI on the grounds that the surcharge creates an undue financial burden. DHCR has authority to reduce or eliminate the surcharge for qualifying low-income tenants upon hardship showing.

RTP-8 renewal form — the 90-to-150-day service window and tenant response period

The RTP-8 (Renewal of Lease Form for Rent Stabilized Apartments) is the exclusive form through which landlords must offer renewal leases to stabilized tenants. Its use is mandated by 9 NYCRR §2523.5, and failure to use it or failure to serve it within the required window has significant legal consequences that differ from those in other rent-control jurisdictions.

The service window

The landlord must serve the RTP-8 on the tenant no sooner than 150 days and no later than 90 days before the current lease expires. For a lease expiring March 31, 2026: the earliest lawful service date is November 1, 2025 (150 days before); the latest lawful service date is January 1, 2026 (90 days before). Service is by mail (certified and regular mail) or hand delivery to the apartment. If served by mail, add five days for the mailing presumption, meaning the effective service date is five days after the postmark date.

Tenant response period

After receiving the RTP-8, the tenant has 60 days to: (a) sign and return the form selecting either the one-year (2.75%) or two-year (5.25%) option, or (b) reject the renewal (which typically leads to a holdover proceeding). The tenant’s choice of one-year versus two-year governs which RGB rate applies. A landlord cannot force a tenant to accept a two-year lease; a tenant who prefers a one-year lease at 2.75% has the statutory right to that option.

Late service consequences

If the landlord serves the RTP-8 fewer than 90 days before lease expiration, the renewal is still valid but the rate that applies is the more favorable rate between the current cycle’s order and the prior cycle’s order (whichever is lower for the tenant). Late service also shifts the effective date of the renewal forward: if the landlord serves the renewal 30 days before expiration instead of 90, the new lease commences 60 days after service, not on the original expiration date — the tenant gets the benefit of the original lease terms for the extra period. Persistent late service can be treated as a pattern of non-compliance in DHCR proceedings.

No-response holdover

If the tenant does not respond within the 60-day period and does not vacate, the tenancy converts to a month-to-month tenancy at the last stabilized rent. This is not a basis for eviction: the tenant remains protected by just-cause eviction law and cannot be removed simply because no renewal was executed. The landlord may not increase the rent during a holdover month-to-month tenancy; the rent stays at the prior lease’s level. The landlord can serve a new RTP-8 for a subsequent cycle, but cannot retroactively apply RGB increases for the holdover period.

DHCR Annual Registration — Form RR-1, the July 31 deadline, and the consequences of non-registration

DHCR registration is the administrative backbone of NYC rent stabilization. Unlike California AB 1482, which has no landlord registration requirement, or Oregon SB 611, which has only a 90-day notice obligation, NYC RSL requires every stabilized-housing-accommodation owner to file an annual registration statement for each stabilized unit with DHCR by July 31 of each year. The registration requirement is codified at NYC Admin. Code §26-517 and implemented through DHCR’s Rent Registration and Enforcement Information System (RREIS).

What to register

For each stabilized unit, the Annual Registration Statement must include: (1) the unit address and apartment identifier; (2) the current tenant’s name; (3) the legal regulated rent as of the registration date; (4) the actual rent collected if a preferential rent is in effect (both figures must be registered separately); (5) the lease commencement and expiration dates; (6) any IAI surcharge amounts and the DHCR approval dates; (7) any MCI surcharge amounts and the DHCR approval dates; and (8) a certification by the owner or authorized agent that the information is accurate. The landlord must simultaneously serve a copy of the registration on the current tenant at the unit address.

First registration for newly covered units

When a unit enters stabilization for the first time — a newly constructed building whose 421-a abatement period has begun, a building newly acquired where the prior owner failed to register, or a newly identified covered unit in an existing building — the owner must file an initial registration within 90 days of the first stabilized tenancy commencing. The initial registration establishes the “base date” rent, which becomes the reference point for overcharge analysis going forward.

Consequences of non-registration: a cascade of penalties

Non-registration does not merely expose the landlord to a fine — it structurally bars all rent increases and creates massive retroactive overcharge liability. Under NYC Admin. Code §26-517(e), an owner who fails to register cannot implement any rent increase — in any unit in the building — during the period of non-registration. Any increase taken while the accommodation was unregistered is a void increase and constitutes an overcharge. If registration has lapsed for, say, five years, every rent increase taken in those five years across every unit in the building is an overcharge. With the six-year lookback (and fraud lookback back to 1984), the exposure compounds rapidly in multi-unit buildings.

The overcharge penalty mechanics for non-registration are particularly harsh because non-registration establishes a presumption of willfulness. Under 9 NYCRR §2526.1(a)(3)(iii), when no valid registration is on file for any year within the lookback period, the overcharge is presumed willful and treble damages apply automatically unless the landlord rebuts willfulness by clear and convincing evidence. A landlord who simply forgot to file for three years — a common situation for small building owners who manage their own properties without professional management — faces presumed treble damages on every increase taken in those three years across every unit.

The public searchability of DHCR registrations compounds the practical risk: any person with internet access can search nyshcr.org/Apps/HousingConnect and see every year of a building’s registration history. Tenant attorneys in NYC routinely run DHCR searches as a first step in any tenant representation. A registration gap visible on the public portal is an invitation to file an RA-89 overcharge complaint.

Correcting a registration lapse

If a landlord discovers a registration lapse, the recommended approach is: (1) file all missing-year registrations in RREIS immediately; (2) serve copies on all current tenants; (3) retain counsel to assess the overcharge exposure before any tenant complaint is filed; and (4) consider whether a proactive settlement of overcharge claims with current tenants (at standard damages rather than treble) is preferable to waiting for a DHCR complaint that triggers treble-damages presumption. There is no mechanism to cure a registration lapse with retroactive effect that eliminates the overcharge liability — the cure makes future increases lawful but does not make past unregistered increases retroactively proper.